Exhaust-regenerator system.



PATENTED JUNE 23, 1908.

A; G. B. RATEAU.

EXHAUST REGENERATOR SYSTEM.

APPLIGATION FILED SEPT. 9,1905.

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PATENTED JUNE 23, 1908.

A. G. E. RATBAU.

EXHAUST REGENERATOR SYSTEM.

APPLICATION FILED SEPT. 9.1905.

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Jiazfifazz UNITED STATES PATENT OFFICE.

AUGUSTE GAMILLE EDMOND RATEAU, OF PARIS, FRANGE, ASSIGNOR TO RATEA'U STEAM REGENERATOR COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF WEST VIRGINIA.

EXHAUSTBEGENERATOR SYSTEM.

Specification of Letters Patent.

Patented. Ju e 23, 1908.

Original application filed December 31, 1904, Serial No. 239,166. Divided and this application filed September 9,

To all whom it"may concern:

Be. it known that I, AUGUsTE O. E. RATEAU, citizen of France, residing at Paris, France, have invented a certain new and useful Improvement in Exhaust-Regenerator Systems, being a division of my application Serial No. 239,166, filed December 31, 1904, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to motors employing fluids preferably supplied to the engine or motors at different points, and preferably, though not necessarily, at diflerent pressures derived fromdifferent sources. One source may be regenerated exhaust steam the other source may be a source of steam ofhigher pressure, as the boiler steam,whilch I employ to supplement the lower pressure steam, in order that the deficiency thereof, which may vary, may be supplied.

My invention has been employed in connection with steam turbines, though it is not .to be limited to' this use, and in practicing my invention, I employ valves, one regulating the application of the low pressure steam to the engine and the other the application of the high pressure steam in conjunction with which valves, I employ a valve regulating apparatus whereby more or less of steam from each source may be admitted tothe engine.

My invention has as an important object 'the' control of the valves governing the admission of high and low pressure operating fluid or steam through the agency of operating steam or fluid, and the invention has been found .of particular servicein that class of' power-producing mechanism where steam is admitted from the low. pressure source to the SerialI Io. 277,710.

' ow pressure steam, which valve regulating means has been-arranged to be yvithin the influence of the low pressure steam admitted from the steam accumulator, whereby proper regulation of the low and high pressure valves may be effected to regulate the requisite application' of steam to theengine, so that all possible steam of the low pressure source will be utilized in the turbine or engine and the high pressure steam is called upon only to supply a deficiency in the low pressure steam. I do not wish to be limited, however, to the source of steam that is employed for controlling the valve --regulating means. By means of my invention, it is not necessary to have two sources that supplysteam in steady fluxes. I have preferab y employedtwo distinct. engine elements, to one of which the low pressure operating steam or fluid is admitted, and to the other of which the high pressure steam is admitted, but I do not wish to be limited to the preciseway in which the low pressure and the high pressure steam are admitted to the composite engine or engine piston mechanism is preferably constantly under the influence of the low pressure steam and of spring mechanism, the spring mechanism acting upon the piston mechanism in one direction, while the low pressure steam acts upon saidpiston mechanism in the-oppositedirection, these opposing forces, when operating, normally serving to maintain the piston mechanism in a given position, whereby the valves may be subject to the control of a speed regulator or governor to maintain the proper speed of the engine. By means of my invention, this same governing agency is also permitted to have the proper control of the speed irrespective of the positions the piston mechanism may assume through the influence of the low pressure steam and the spring mechanism acting thereupon. governing mechanism preferably secures for each change in its condition of operation, a

I similar change .in the adjustment of the ment of the valves.

gine or turbine.

valves, while the valve regulating mechanism that is controlled by the. steam preferably efiects a differential or' 'unlike adjust- I-will explain my invention more fully by reference to the accompanying drawing showing one application and embodiment of the invention, inwhich.

Figure 1 is a view somewhat structural and somewhat diagrammatic, illustrating the application ofmy invention to asteam'engine or turbine'whose energy is supplied from a steam accumulator or regenerator and also from a source of higher pressure, .as the boiler, from which thesteam accumulator indirectly receives its steam, which has previously been used, for example, in an engine. Fig. 2 is a plan view .of a portion ofthe apparatus illustrated in Fig. 1, excepting that the ball governor is swung atrig-ht-angles to the positionshown in Fig. 1. Fig. 3 is a detail view showing one of many't es of valve structures that may be employe d ling the admission of steam into the steam en- Fig'. 4 is a view somewhat diagrammatic, illustrating a modification of the apparatus shown-in Figs. 1 and'2.

ters of referencethroughout the different fi ures.

The invention having been shown in connection with a steam regenerator or accumulator, I have diagrammatically indicated various elements that enter into such system. The initial source of steam pressure is the boilera that furnishes live steam to anengine b thatmay be em loyed for performing any suitable work, and which use is immaterial in connection with my present invent-ion, the exhaust .of which engine is received in asteam regenerative accumulator 0, such as has been illustrated, for example, in my aforesaid patent. The steam from the steam regenerators, such as c, is frequently used in the operation of steam engines as the boiler a, this steam, at increased pressure, being thus live steam, though I do not wish tobe limited to the particular source from which the steam at high pressure is received. As a description of one of the valve struc tures will answer as a description of both, the

in GODtI'Olr.

A valve mechanism 0,.

structure illustrated fully in Fig. 3 will only be specifically explained. The casing f defines a steam chamber from the upper part of which a bell-'sha ed element g is de ended, which bell-shaped element is provided with a series of ports it that communicate with the s ace about said element g, in which space the steam from the source of supply is received. Within the bell-shaped element there is rovided a reciprocating valve element '5 t at has a vertical flange portion k that serves, when in a depressed position, to

seal. the orts h. When this valve element '5 is in an e evated position, the flange or piston portion k is uncovered frornthe orts h, whereby steam may find passage 1nto the channel m. Openingsl' are provided in the plunger or iston is so that the steam admit ted throu the ports i may surround said piston an balance the same. There may be any suitable form of connection established between'the low and high pressure controlling steam valves; I have indicated a pipe ,1 conveying low pressure steam to the low pressure motor element and a pipe 0 for ringing high pressure steamto the high pressure motor element, d. The valve stems p and g of the low and high presure Like parts are indicated by similar characvalves are articulated to. the bell-cranks 1' and s respectively, which bell-cranks are fixed upon-shafts. to which are also fixed bellcranks r and s, which latter links are flexibly connected with links 7 and s that are pivoted or-linked together at their adjacent ends. It will be seen that the stems p, gwork in stationary 'uides that are shown at their lower ends. connecting rod t is also linked to the links r and s where the latter are joined. The bell crank lever it having a I the arms 1' and s as the speed of the engine changes, so that the valves controllin the low and high pressure steam will be slmultaneously controlled to maintain thespeed of the engine. The governing mechanism that has thus been particularly described is supplemented by a pressure governor which is desirably regulated by the low ressure steam. This ressure governor in ig, 1 is illustrated in t e form of a cylinder u, to the bottom of which is led a steam passage u that leads preferably directly from the pipe immediately leading from the steam accumulator, so as direct] tobe subject to the low pressure steam. Vithin this cylinder there is located a piston '11}, inte osed between which and the cap a of the cy 'nder is a coil- The piston is provided witha piston rod a that may be pivoted thereto somewhat in the mannerof the piston and rod construction of the Brotherhood engine. The other end of this iston rod 11. is shown connected with the el ements r 8 and t where these elements are joined, all of which elements, together with the element uf, thus have a common axis of rotation, Where the pressure from the low pressure source of steam becomes excessive, the piston 11. will rise a ainst the force of the spring to, whereby the link 1" will be moved in a counter-clockwise direction and the link s will be..1n.oved .in a clockwise direction, whereby the links rand sare res ectively moved in counterrclockwise and cibckwise directions, whereby the low pressure valve permits the flow of more low pressure steam andthe-high pressure valve per mits the flow of less high pressure steam,

When, however, the low pre'ssuresteam decreases in pressure, thespring-u eflects deression of the iston M causin; aclockwise 7 movement of thearm r and the link r and a .oounte clockwise movementyofthe arm and thelink 8, thereby reducing the flow of low pressure steam and increasing the flow of highpressure steam, hereby the said engine may e he req i ite mount. f n rgy ap= plied thereto to secure its effective operation.

I haveiinmediately above describedso'ine specific positions or conditions of theth-rottles or inlet valves for the high andlow pressu steam. It is Ob iQL hat under-certain circuinstancesthe low pressure valve may be a t gether o e a d the h gh'pressure valve opened. and under. other cfircumjstences'that the high pressure valve may be Ealjtogether closeiilfand the low pressure valve opened. It will be, thus seenthat Ihave provided autoinaticall operated-throttles which, in assoc ationwith. th spec I gflvernor, will enable the-engine. totakecare ofvaryingloads at reriuisite speed..

two sources of ,opereting fluid, an ngine adapted to be operated by fluid received from these sources, valv s con ling the pa sage cf said fluid fromsai engi e, mech- 55. the engine will'be operated by fluid received j determined.

anism controlledby operating fluid (prefer ably. received from the low pressure source) for effecting opening act on upon one valve as ithas closing action upon the other valve, I

whereby the relative positions of said valves are determined, and a speed governor simultaneously exerting opening or closing action from the source 0 altogether as long as there is sufficient fluid receivable from said source, but when the fluid supplied from the source 0 is deficient, the quantity required will be made up from the source asupplied through the pi e 0. i I

In Big. 4, I have illustrated one of many other forms of my invention. In this construction, I have employed, two dash-pots instead of one, .as shown in Fig, 1, the pistons v whereof are shown attached to the pipe w and within cases w:r, which are provided with link connections y-y, whichcontrol respectively the low and high pressurevalves. The pipe 11; has attached thereto a flexible duct 2 communicating with the; source of low pressure steam. The 'pi' e w is connected with a connecting rod tw ieh is provided for the same purpose as the connecting rod t in the arrangement shown in Fig. 1. The pipe to serves to admit steam between the pistons v and their casings, springsbeing upon the other side of the said pistons. A reciprocation ofthe pipe to will cause movement of the links y-y for purposes of speed regulation. Motion of the links y.,y independent of the pipe w is efiect'eduponvariatiion in the pressure of the steam behind the pistons, as-has bee xplained and. wi li' e. u e stood.

.I use the terms highpressure l and low pressure herein in their relative sense.

ne ater erei i lust ated and. pe cally c aim t av th wn n 'Fi 4- It will begseenjthat I have. produced an app ratus that works to particula advantag-e inconnectipn with operating fluid/of diff ent .i resisure upp- 1min he engin 1 turbine constructional suchdifi r n mes sur s, butl d notwish. t be limi ed t the app i a n. cf uid-at d fferenti lies ur t will lso be seen that I have provided an imp ed P we g nera ng y em c udi 1 It is obvib lsffl el manychanges may be made in theap e at sef my ereniionivitl 0 departmefre t sp r t th eef en- I do not,'. he efm'e; wish to be lim ted to .1116 precise embodiments of my invention, but Havingjthus described .ni yfi ivenlioiniI claim asnew-and desire to secureby .lmtlers said equipment, a steam regenerative accumulator supplied. from said, engine, an enginereceiv ng steam from said accumulator; and equipment at different points, Valves controll ng the passage of 'lhudifron-i said accumulater and equipment totho Iat- 4O inga boiler equipment for-supplying steam,

" :mechanism operatin v said valvesand-i-oper ter engine, and valve operating mechanism operating said valves and operated by fluid received from one of said sources.

2. A system for producing power includmg a boiler equipment for supplying steam, an engine operated by steam furnished from said equipment, a steam regenerative accumulator supplied from said engine, an engine receiving steam from said accumulator and equipment at different oints, valves controlling the passage of fluid said accumulator and equipment to the latter. engine, and valve operating mechanism operating said valves and operated by fluid received from said accumulator.

. 3; A system for producing power including a boiler equipment for supplying steam, an engine operated by-steam furnished from said equipment, a steam regenerative accumulator supplied from said engine, an engine receiving steam from said accumulator and e uipment at different points, a valve contrdlling the flow of steam from one of said'sources to the engine, and valve operating mechanism governing said valve and operated by fluid received from the-*other source.

4. A system for producing power including a boiler equipment for supplying steam, an engine operated by steam furnished from said equipment, a steam regenerative "accumulator supplied from said engine, an

engine receiving steam from said accumu-g;

lator and equipment at diflerent points, a valve controlling the. flow of steam .from

said equipment to the engine, and valve operating mechanism governing said valve and operated by fluid received from the accumulator. i

5. A system for producingp'ow'er includan engine operated by steam furnished from said equipment, a steam regenerative accumulator supplied from said engine, an

engine receiving steam from said accumulator and equi ment, valves controlling the} passage of flui from said accumulator andv equipment to the latter engine, and valve operating mechanism operating said valves and operated by fluid received from one of said sources 6. A system rorproducing )ower including a boiler equipment-for supplying steam, an

engine operated by steam furnished. frontv said equipment, a' steam regenerative -accu-' mulator supplied from said engine, .anengine receiving steam from said accumulator-and equipment, valvescontr'olling the pass'age of d fr iea'. to the latter 'fen'gine, .andivalve operating ated by fluid receive from'said. accumulator.

, 7 A system for producing power including I a boiler equipmentfor supplying steam,.' arifypm operating .i'neclianismg governing said valve engine operated by steam furnished,

from

d "accumulator. and equipment- I said equipment, a steam regenerative accumulator supplied from said engine, an engine receiving steam from said accumulator and equipment, a valve controlling the flow of steam from one of said sources to the engine, and valve operating mechanism governing said valve and operated by fluid received from the other source. I

8. A system for producing ower including a boiler equipment for supp ying steam, an engine operated. by steam furnished from said equipment, a steam regenerative accumulator supplied from said engine, an engine receiving steam from said accumulator and equipment, a valve controlling'the flow of steam from said equipment tothe engine, and valve operating mechanism governin said valve and operated, by fluid receive from the accumulator.

9. A system for producing )ower including a boiler equipment for suppl said equipment, a steam regenerative accumulator supplied from said engine, a steam turbine "receiving steam from said accumulator and e uipment at different points, valves contro ling the assage of fluid from said accumulator an equipment to the steam turbine, and valve operating mechanism operating said valves and operated by fluid received from one of said sources.

10. A system for producing power including a boiler equipment for supplying steam, an engine operated by steam furnished from said equipment, a steam regenerative accuturbine receiving steam from said accumulator and e uipment at diflerentoints, valves contro ling the assage of flui from said accumulator an equipment to the. steam turbine, and valve operating mechfluid received-from said accumulator.

11. A system for producing power including a boiler equipment for supplying steam, an engine operated by steam furnished from said equipment, a steam regenerative accumulator supplied from said engine, a steam turbine receiving steam from said accumulat-or and e uipment at'diflerent points, a valve contro ling the flow of steam from one of .said sources .to-:tl e .steam turbine, and

valve and-operated by fluid-received from theother source. '34 i ing a boiler equipment -'forzsupplying= steam, 'an i engine operated by. steam. furnished from sa'i;d :,-equipment, a steam regenerative accusmulatorsupplied-from: saidqengine, turbine-receiving, steam froina s'aid'; a

lator-and e uipment; at different jj'ointsifi valve contro; ling the. fioui-otsteam fromfsaid equipment, to the steam turbine, and-valve A system forproducingp ower includ ying steam, an engine operated by steam furnished from.

mulator supplied from said engine, a steam anism operating said valves and operatedby valve operatingmechanism governing said and 0 erated by fluid received from the accumu ator.

13. A system for producing power including a boiler equipment for supplying steam, an engine operated by steam rnished from said equipment, a steam regenerative accumulator supplied from said engine, a steam turbine receiving steam from said accumulator and e uipment, valves controlling the passage of fluid from said accumulator and equipment to the steam turbine, and valve operating mechanism operating said valves and operated by fluid received from one of said sources.

14. A system for producing power including a boiler equipment for su plying steam,

- an engine operated by steam urnished from said equipment, a steam regenerative accumulator sup lied from said engine, a steam turbine receiving steam from said accumulator and e uipment, valves controlling the passage of uid from said accumulator and equipment to the steam turbine, and valve operating mechanism operatin said valve and o erated by fluid received rom said accumu ator.

15. A system for producing power including a boiler equipment for su plying steam, an engine operated by steam urnished from said equipment, a steam regenerative accumulator sup lied from said engine, a steam turbine receiving steam from said accumulator and equi ment, a valve controlling the flow of steam rom one of said sources to the steam turbine, and valve operating mechanism governing said valve and operated by fluid received from the other source.

16. A system for producing power including a boiler equipment for vsu plying steam, an engine operated by steam urnished from said equipment, a steam regenerative accumulator supplied from said engine, a steam turbine receiving steam from said accumulator and equipment, a valve controlling the flow of steam from said equipment to the steam turbine, and valve operating mechanism governing said valve and operated by fluid received from the accumulator.

17 A system for producing power including a boiler equipment for su plying steam, an engine operated by steam urnished from said equipment, a steam re enerative accumulator supplied from sai engine, and a second engme, said second engine receiving steam from said accumulator at one point and steam from said boiler equi mentat another point, a pipe w, a fleXib e duct 2 for conveying steam thereto, pistons v 0 attached to pipe w, cases w a," for the pistons, and link connections y y ada ted to control the low and high pressure va ves.

In witnesswhereof, I hereuntosubscribe my name this twenty-second day of August A. D., 1905.

AUGUSTE CAMILLE EDMOND RA'IEAU. itnesses:

JACK BAKER,

HANSON 0. CoxE. 

